JQuery simple cookie operation plug-in instance _ jquery-js tutorial

This article mainly introduces jQuery plug-ins for simple cookie operations, and analyzes the function definition and usage skills of jQuery plug-ins for cookie operations in the form of examples, for more information, see the examples in this article. We will share this with you for your reference. The details are as follows:

jQuery.cookie = function(name, value, options) {  if (typeof value != 'undefined') { // name and value given, set cookie    options = options || {};    if (value === null) {      value = '';      options.expires = -1;    }    var expires = '';    if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {      var date;      if (typeof options.expires == 'number') {        date = new Date();        date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));      } else {        date = options.expires;      }      expires = '; expires=' + date.toUTCString();    }    var path = options.path ? '; path=' + (options.path) : '';    var domain = options.domain ? '; domain=' + (options.domain) : '';    var secure = options.secure ? '; secure': '';    document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');  } else {    var cookieValue = null;    if (document.cookie && document.cookie != '') {      var cookies = document.cookie.split(';');      for (var i = 0; i < cookies.length; i++) {        var cookie = jQuery.trim(cookies[i]);        if (cookie.substring(0, name.length + 1) == (name + '=')) {          cookieValue = decodeURIComponent(cookie.substring(name.length + 1));          break;        }      }    }    return cookieValue;  }};

The call is also very convenient:

// Use the following method: // set the cookie key-Value Pair // $. cookie ('name', 'value'); // set the key-value pair, validity period, path, domain, and security of the cookie. // $. cookie ('name', 'value', {expires: 7, path: '/', domain: 'jquery. com ', secure: true}); // create a cookie, including the domain name in the validity period path. // read the cookie value // var account = $. cookie ('name'); // delete a cookie // example $. cookie ('name', null );

I hope this article will help you with jQuery programming.